122247869 has 2 divisors, whose sum is σ = 122247870. Its totient is φ = 122247868.

The previous prime is 122247791. The next prime is 122247887. The reversal of 122247869 is 968742221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115304644 + 6943225 = 10738^2 + 2635^2 .

It is a cyclic number.

It is not a de Polignac number, because 122247869 - 2¹² = 122243773 is a prime.

It is a super-2 number, since 2×122247869² = 29889082950082322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122240869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61123934 + 61123935.

It is an arithmetic number, because the mean of its divisors is an integer number (61123935).

Almost surely, 2^122247869 is an apocalyptic number.

It is an amenable number.

122247869 is a deficient number, since it is larger than the sum of its proper divisors (1).

122247869 is an equidigital number, since it uses as much as digits as its factorization.

122247869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The square root of 122247869 is about 11056.5758261769. The cubic root of 122247869 is about 496.3032271010.

The spelling of 122247869 in words is "one hundred twenty-two million, two hundred forty-seven thousand, eight hundred sixty-nine".